Normal people's sleep time

The amount of sleep a person needs at each stage of growth is different. It is especially important for children to get enough sleep, because sleeping helps promote the body's metabolism and promotes the child's physical development. However, if a normal person does not get enough sleep for a long time, it is very easy to become listless and lack of energy. So how long does a normal person sleep in a day?

It is generally believed that primary school students should get 10 hours of sleep a day, while middle school students should get 9 hours. The reason why such a long sleep time is needed is that teenagers are in an important stage of their body growth and development, and sufficient sleep is very important to them. Only with enough sleep time can one eliminate the body's fatigue, restore physical strength in time, and promote the body's normal growth and development.

Secondly, adults generally need to ensure at least 7 hours of sleep per day. In contrast, older people need less sleep because their metabolism slows down and their physical activity decreases. Due to differences between individuals, the elderly generally only need to sleep for 5 to 7 hours. In recent years, some relevant studies have shown that the sleep time of the elderly cannot be reduced, but should increase accordingly as they age. However, this statement still needs further research.

What are the hazards of long-term lack of sleep? The details are as follows:

1. Affect brain reaction and work efficiency. Without enough sleep, the human brain will not get enough rest, which will affect the brain's thinking ability and make it difficult to concentrate on doing things. If this continues for a long time, not only will you not be able to do your daily work well, but you will also get tired of your work, which will affect your work efficiency.

2. For teenagers, it also affects their development. In addition to genetic and nutritional factors, the secretion of growth hormone also affects the physical development of adolescents, especially height. If you don't get enough rest for a long time and the secretion of growth hormone is poor, it will seriously affect the development of your height.

3. Cause skin problems. Lack of sleep can cause dark circles under the eyes and dull skin. Night is not only a time for the human body to rest, but also a time for human organs to metabolize and excrete toxins. Long-term lack of sleep will affect the normal functioning of the liver, and may easily cause skin problems such as rough skin, dull skin, and brown spots.

In short, good sleep is very important for everyone. If you don’t get enough sleep in the long run, it will endanger your health and cause a series of health problems. Therefore, people must pay more attention to this issue.